NJW4710

NJW4710 www.DataSheet4U.com 4ch Laser Diode Driver for Blue Laser Diode sGENERAL DESCRIPTION NJW4710 is a laser diode driver for the operation of a grounded blue laser diode. It is suited to drive a blue laser diode, because it is operated by split power supply. It includes 4 channels current amplifiers for 4 different optical power levels. An on-chip RF oscillator is provided to reduce laser mode noise during read mode. Oscillation frequency and oscillation amplitude are defined by two external resistors sFEATURE q Operating Voltage q Internal Oscillator Circuit q Rise Time / Fall Time q Maximum Output Current q Bi-CMOS Technology q Package Outline sPIN CONFIGURATION sPACKAGE OUTLINE NJW4710VE1 Vcc1=4.5V to 5.5V, Vcc2=8.0 to 10.0V 200MHz to 500MHz 0.8ns typ. 250mA typ. SSOP24-E1 1 24 12 13 1:GND 2:IinR 3:GND 4:Iin2 5:Rfreq 6:Iin3 7:Iin4 8:Vcc1 9:OUTEN2 10:OUTEN3 11:OUTEN4 12:GND 13:GND 14:Vcc2 15:Vcc2 16:OSCEN 17:ENABLE 18:Ramp 19:GND 20:Iout 21:Iout 22:Vcc2 23:Vcc2 24:GND sBLOCK DIAGRAM OUTEN4 GND Vcc2 OUTEN2 OUTEN3 CH-R OSCEN I INR CH-2 Ramp I IN2 OSC Rfreq CH-3 I IN3 Iout CH-4 Vcc1 I IN4 BIAS ENABLE -1Ver.2 NJW4710 www.DataSheet4U.com s ABSOLUTE MAXIMUM RATINGS(Ta=25°C) PARAMETER SYMBOL Supply Voltage 1 Vcc1 Supply Voltage 2 Vcc2 Input Voltage Vin Power Dissipation PD Operating Temperature Range Topr Storage Temperature Range Tstg s RECOMMENDED OPEARATING CONDITION(Ta=25°C) PARAMETER Operating Voltage1 Operating Voltage2 SYMBOL Vopr1 Vopr2 TEST C...